Research On Resource Space Relationship And Dynamic Constructing

With the rapid development of Web technology, mass Web resources mostly exist in the form of heterogeneous and distributed. The traditional data models are incapable of effectively manage and locate Web resources. Resource space model (RSM) is a semantic model to classify, normalize, store, manage and locate Web resources in multi-dimensional resource spaces which based on the semantic classification organization and management of Web-based resources.In an open and dynamic interconnection environment, all kinds of Web resources have certain relationship regardless from the perspective of explicit or implicit. The problem to build and then map onto the connection between resource spaces, which is improving the accuracy and recall ratio of locating resources, needs to be solved in RSM. In the connection between resource spaces, the dynamic construct problem in single resource space should be solved firstly. Heterogeneous and distributed data forms equivalent resource space, which do not limit on a particular or Isomorphic resource space. In addition, the traditional RSM storage mechanism just can store simple hierarchy semantic relationship, which is hard to satisfy hierarchy semantic relationship. Therefore, this work studies the issues of relationships between resource spaces, improving RSM storage mechanism and dealing with dynamic constructing single resource space. Through multidimensional browsing or keyword locating resource, the dynamic construct relationships between resource spaces can be realized. The main contribution includes:Firstly, a new conceptual model Resource Space Relationship Model (RSRM) is proposed. This paper not only studies and analyzes the relationship among resource spaces, and formalizes the RSRM, but also designs and analyzes the architecture. The proposition of RSRM effectively improves the reuse rate of resource space structure and recall ratio of organizing, managing and locating resources between resource spaces. RSRM is the strong evidence to locate resource accurately between resource spaces.Secondly, the Resource Space Storage Mechanism is improved. According to storage simple hierarchy semantic relationship in the RSM mechanism, it modifies the Resource Space Storage Mechanism. Based on the former groundwork, the mechanism produces node aggregation link through searching aggregation relationship among nodes of RSM schema tree and adding aggregation operation into aggregation node with related nodes. Combining with aggregation algorithm, it will store complex hierarchy semantic relationship in the resource space and improve capability on expressing hierarchy semantic relationship by RSM schema tree.Thirdly, the dynamic construct of single resource space is realized. This paper makes full use of Tree View XTREE and data transform format JSON to show dynamic construct of singe resource space. Simplify the structure and interface to achieve RSM's easy operation. Appling JSON to transform between XTREE and RSM:convert XTREE into JSON firstly, and analyze JSON into RSM schema which according to RSM storage secondly, and then realize the storage from XTREE to RSM finally, so as to solve the dynamic construct of singe resource space.Finally, the dynamic construct relationship between resource spaces is realized based on above work's foundation. According to the resources space relational model, the single resources space dynamic structure and the improvement resources space memory mechanism, RSRM build dynamically system supporting construct and browse resource space relationship dynamic and managing resources through single resource space. The dynamic construct system achieves multidimensional browsing and locating resource by keywords ultimately.